The bar graph provides information about the comparison between numbers of different genres books (science fiction, novel, history, and poetry). Units are measured in numbers.
Overall, there were significant changes. As can be seen, the number of books which sold showed a significant increase, while the sales figure of poetry books experienced a downward trend.
Majority of the population tended to buy the science fiction books, while so few people genuinely preferred to read the books about the poetry. The sales in the former therefore increased by 4000, while the sales number of the latter reached nearly 500. People’s interests to the history books was not reached its peak, despite it did not experience the downward trend. Sales in number of history books increased slightly and reached approximately 2500. Then, the novel sales was outnumber the science fiction, history, and poetry books and it reached its peak, around 4500.